Grate-bar support



Aug. 26, 1924.

H. F. PENNEY ET AL BAR SUPPORT ed March Aug. 26, 19240 1,506,200

H. F. PENNEY ET AL I GRATE BAR SUPPORT Filed March 8, 1923 2 Sheets-Sheet 2 Charles Clark Tmu Hamid f nn 'y BY I/NVENT R.

I M/i -A TORNEYI Patented Aug. 26, 1924.

UNITED STATES PATENT OFFICE.

HARO D F- EENNEY AND CHAR ES LA FEAUTZ; 01 GENEVA, NEW ORK, AS-

SIGNQES T FE LLIES & CLARK TOV QQ LNG, Q13 GE EVA, NEW YORK, A C03- QBA ION 01 RK- GRATErBAR' SUPPORT.

Application filed March 8, 1923.

To all whom it may concern;

Be it known that. we, HAR LD F. PnNNnY and CHARLES CLARK FRAUTZ, citizens of the Unit d States, r siding at eneva, in the county of Ontario and State of New York,

have inv nt d c rtain n w and useful Improv ments in Grate-Ba upp rts, f which the following is a specification,

The object of this invention is to provide a new and improved method and means for locking the grate bars of a furnace grate into their respective hearings in the grate bar supp t hese and other o je ts of this invention wi be fully i ustrated n h draw ng, de-

scr d n he p cificati n and po nt d out in the claims at the end thereof,

In the accompanying drawings:

Figure 1 is a perspective view of a portion of a grate showing the novel means of locking the grate bars in place in their supports.

igur 2 i a detai v tica secti nal perspective view of one of the grate barsv a its supp ing bearing, th section being taken on the line 2 2 of Figure 1.

Figure 3 is a detail perspective view of a portion of the supporting member of the grate bars,

Figure 4 is a perspective view of the outer nd of e g ate ber- Figure 5 is a perspective view of a portion of the locking plate. for lockingthe grate bars into their supporting bearings.

Figure 6 is an elevation of the locking plate shown partly in Figure 5.

Figure 7 is an elevation of the supporting member shown partly in Figure 3.

In the several figures of the drawings like reference numerals indicate like parts.

It is essential that the grate bars of a furnace grate are locked in place in their respective hearings or supports so that they cannot disengage themselves from the support during their rotation for if this hap pens one or more of them will drop down at one or both ends and allow the fire or at least part of it to drop into the ash pit while the grate is being shaken down. This must be prevented.

In our present invention the locking of the grate bars to the grate bar support is secured by means of a locking plate which pair of lugs 12 and, 18.

Serial No. 623,788.

when slipped over the grate bars and properly positioned thereon holds the bars centered in place the hearings in the gra e her supp rt. Our invention also per- Inits the easy removal of one or more of the grate bars and the insertion of new ones in their place without disturbing the remaining grate bars,

As illu trated in the figures the grate bar support 1 for supporting the forward ends of the grate, bars .2, 2 comprises a h rizontal bridge member having vertical ends with the bifurcations 3 and at formed thereon. These bifurcations rest on the pins 5 nd 6 provided on the'inner walls of the ash pit 7 Depending from the grate bar upport 1. are t o pairs of hooked shaped b aring membe s having the hearings or adles 8 and 9 f rm d thereon of whi h one projects toward the left and the other toward the ght hand wall of t e ash pit '7. The outer ends of the grate bars 2 are supp r d in these hearings or crad esl and .9 d otate therein.

For the purpose of holding the grate bars 2 against endw se movemen in these bearings o cradles a pair of col ars or flanges l0 and 11 are formed on each of the grate bars which are spaced apart and cated thereon so as to project down on each side of the hearings or cradles as illustrated in Figures 1 and 2*.

Beside thecollars o flanges 10 and .11

each grat bar 2 is also provided with a These lugs project radially from the grate barat right an les to each other. Thelockng plate 14: that will now be described is placed between the lugs 11 and 12 on} the one side and collar or flan e 10 on the other side.

For this purpose the locking plate 14 is rovided with four holes 15 through hi h the ends of the grate bars 2 can pass. collar 16 in which the radial slots 17 and 18 are provided. The slots are located at right angles to each other although a greater or smaller angle would answer the same purpose providing the lugs 11 and 12 are correspondingly spaced and project from the grate bars so that they can pass thru the slots. The sides of these slots are tapered and incline toward the outer face of the collar so as to provide a large opening for the Surrounding each of the holes 15 is a lugs 12 and 13 to enter into and then center these lugs in the slots 17 and 18 until they can pass therethrough.

In placing'the locking plate onto the grate bars, it is necessary to first position all of the grate bars 2so that the lugs 12 and 18 thereof stand in the same angular position as the slots 17 and 18 provided in thelocking plate 14. In this way the lug 12 of the grate bar is brought in line with-the slot 18 in the locking plate and the lug 13 isbrought in line with the slot 17. The locking plate is then slipped into place as above pointed out so that the locking plate and its collars are located. between the lugs 12 and 13 and the collars 10. The grate bars are then turned back to their normal position; in which the lugs 12 and 13 are'out of line with their corresponding slots in the locking plate so that the locking plate cannot be slipped off again from the grate bars but is locked thereon and this in turn locks the grate bars to their support by holding them centrally of the bearings provided therein.

We claim: I

1. In a supporting and locking means for grate bars the combination of a supporting member, bearings formed on said supporting member, grate bars adapted torest in said bearings, a lug projecting from each of said grate bars, a locking plate having a depression therein with a hole in the center thereof for each of said grate bars, the hole in each of said depressions having a slot leading from it thru which the lug on each of said grate bars can pass, said grate bars with said lugs being adapted to pass thru the holes and the slots in said locking plate to make said lugs rotate on the outside of said depressions in said locking plate during the rotation of said grate bars.

2. In-a grate bar and support therefor, the combination of a supporting bridge,

hook-shaped bearings formed on said bridge and depending therefrom, grate bars adapted to rest in said hook-shapedbearings, a pair of collars formed oneach of said grate bars, one at each end of saidhook-shaped bearings to'prevent an endwise movement of said grate bars in said hook shaped bear- 7 ings, a pair of radial lugs projecting from said grate bars with a space between said lugs and the outer one of said collars, a looking plate having depressions therein with a hole in the center thereof and a pair of radial slots leading from the holes, said locking plate being adapted to have said grate bars pass thru the'holes for each of said grate bars and its radial lugs pass thru the slots in said depressions tothe outside of said depressions and make said lugs rotate on the outside of said depressions duringpart of the rotation of said grate bars.

3. In a grate bar and support therefor, the combination of a bridge, a fork depending from each end of said bridge, a pair of studs supporting the forked ends of said bridge, a pair of bearing members depending from said bridge and having a hookshaped bearing at each side thereof, grate bars adapted to rest in said hook-shapedbearings, a locking plate having a depression therein with a hole in the center thereof with a slot leading from the hole for each of said grate bars, a radial lug formed on each of said grate bars, said lockingplate being adapted to be placedover the ends of said grate bars with the grate bars projecting thru the holes in said depressions after said lugs have passed thru the slots leading from the holes in saiddepres' sions so as to rotate outside of said depressions on the rotation of said grate bars, said locking plate being adapted to hold said grate bars in said hook shaped bearings during their rotation.

at. In a supporting and locking means for grate bars, the combination of a supporting member, bearings formed on said; supportdepression therein with a hole in the center thereof for. each of said grate bars, the hole of each of said depressions having a slot leading from it, said grate bars with said lugs being adapted to pass thru the holes and the slots'respectivly in I said depressions of said locking plate and locate one of said collars of each of said grate bars in said depressions and allow said lugs to rotate on the outside of said depressions on the rotation of said grate bars.

In testimony whereof we affix our signatures.

HAROLD F. 'PENNEY. 7 CHARLES CLARK FRAUTZ. 

